Reed for looms.



' R. MULLER.

REED FOR LOOMS.

0N FILED Patented Nov. 2, 1915.

" ROBERT MT'J'LLER, or BARMEN, GERMANY.

REED FOR LOOMS.

. Application filedJ uly 14, 1914. Serial No. 850,998.

To all whom it may concern V Be it known that 1, ROBERT MiiLnER, a citizen ofthe German Empire, and residing at'Barmen, Germany, have invented certain new and useful Improvements in Reeds for Looms, of which the following is a specification. j

My invention relates to reeds for looms and, particularly, to reeds for weaving fine fabrics.

For weaving fine silk fabrics very fine reeds having a very small pitch are frequently necessary. When employing known fine reeds, however, the silk threads of the warp are very seriously injured by the constant friction during weaving, so that such reeds cannot be employed with all kinds of silk yarn because many kinds of silk cannot stand the stresses to which they are subject impeded at the bends, or the known devices referred to did not fulfil their purpose because the warp threads were separated be hind the reed and consequently the exact position of the warp threads at the moment of beating-up was not assured.

A primary object of my invention is to provide an improved reed to which these defects are not attached.

To this end, I arrange in front of, or in front of and behind the dents'of an ordinary reed a number of fine wires or threads of some suitable material which are subjected to a suitable tension, one or more of which is placed opposite each space between two dents, so that the count or pitch of the reed is made smaller.

If desired, the wires or threads may constitute exposed warp threads of a fabric, part of which is not provided with weft threads. Such wires'or threads are a uniform distance apart and are suitably connected together at their ends. The wires or threads are so mounted and tensioned that they can yield or bend slightly, so that the wires or threads located in front of the dents move into the spaces between the dents when the reed beats up, but can return into their normal rectilinear position Specification of Letters Patent.

Patented Nov. 2, 1915.

during the return motion of the reed away from the finished fabric. By means of the hereindescribed arrangement a reedflhaving an exceedingly small pitch can be obtained, and the'injurious'infiuence on the warp is very largely eliminated.

An important feature of the improved de v1ce is that owing to the flexible wires or the like being arranged in front of the reed allthe warp threads are separated from one another right up to the fabric, 2'. e. to the beating-up place. 7

To these ends, the invention consists in the construction, arrangement and combination of parts described hereinafter and pointed out in the claims.- I

Several illustrative embodiments of my invention are represented by way of example in the accompanying drawing, wherein Figures 1 and 2 are front and side elevations, respectively, showing one form of my improved reed comprising wires in front of and behind the well-known dents of the reed; Figs. 3 and 4: are diagrammatic hori- Zontal sections showing the spaces between the dents of two reeds divided into two and three parts, respectively, by auxiliary wires or threads located in front of and behind the reed; Fig. 5 is an elevation showing a fabric comprising exposed warp threads adapted to be mounted in front of a known reed for the described purpose,.and Figs. 6 and 7 are front elevation and vertical section taken on the line A B in Fig. 6, respectively, showing a preferred form of my improved reed, in which flexible wires are arranged only in front of the dents of the reed.

Referring firstly to Figs. 1 and 2, arranged in front of and behind the wellknown dents a are a number of flexible wires or threads 6 spaced at a suitable distance apart running above and below over cross-bars c and serving for separating the warp threads 70 (Figs. 3 and 4:) between the dents a. These cross-bars c are preferably rotatable at one end about pivot pins (Z and can be fastened in a horizontal position by clamps f or other suitable means at their other ends. The wires 6 are fastened in suitable manner at their upper end and are so connected below with the reed that a predetermined tension is imparted to them. If desired, the lower cross-bar may be movable vertically in slots in the frame, so'that it can move upward a short distance when the wires or threads are bent when beating up, and can fall under the action of gravity on the return of the slay. The attachment and connection ofthe wires or threads I), which thus constitute auxiliary dents, with the reed is particularly simple when a fabric of the kind shown in Fig. 5 is used.

In the illustrative embodiment shown in Figs. 6 and 7 the wires 6 of round section are movably mounted above and below by means of loops 9 on cross-bars it carried by the side pieces of the frame 1' of the reed. Vhenthe reed beats up the wires take up i the rear positionindicated in dotted lines in Fig. 7, from which they return into their front position owing to their elasticity and under the action of gravity when the slay in Yes backward.

lI'claitnzj I 1. The combination, with a reed, of a row offlexible tensioned' auxiliary dent's mounted in front ot the reed in planes passing throughthe spaces in the row of dents of the reed, the row of auxillary dents being row offlexible auxiliarydents tensioned by; gravity mounted in front of the reed in planespassing through the spaces in the row V of dents of the reed, the row of auxiliary dents being adapted to be bent into the other row of dents and thereby constituteone row of dents. of small piteh wh-enbeatlng up.

of fleXibleWire's of round section mounted in front of the dents "of the reedand dis? posed staggered; relatively thereto, the wires being adapted etc *be bent into the row, of dents when beating. up and thereby d-im'inish the :count'of the reed;

In testimony whereof, I aifixmy s' igna-j ture in the presence of twqwitnesses.

ROBERT [L233] Witnesses: i

NUFER." v FRANCES New.

35 I 3. The combination, with a reed, of a 'IOW Copies of this patent in a'y be obtained "for five cents each, byaddressji ng the Commissioneriof'latents' Washington, D. U. 

